"One thing popped out as clear as anything, this previously unknown 'bar' of ionized iron atoms, in the middle of the ...
Deep in the dark spaces between stars, astronomers have spotted a sulfur-bearing ring that should not be there, at least not ...
The Ring Nebula, also known as Messier 57, sits about 2,000 light-years from Earth. It is a planetary nebula—a misleading ...